将 TObject 保存到文件 [英] Saving a TObject to a File

问题描述

如何将当前状态下的对象保存到文件中?这样就可以立即读取并恢复它的所有变量.

How can one save an Object, in its current state, to a file? So that it can immediately be read and restored with all its variables.

推荐答案

如前所述，最简单的方法是使用 Stream 及其 WriteComponent 和 ReadComponent 方法.
但请注意:
- 它适用于 TComponent 的后代，而不是普通的 TObject；
- 仅用于已发布的属性(保存在 dfm 中的)，而不是公共的，也不是(更不用说)私人的；
- 恢复组件时必须特别注意 Name 属性.

As already stated, the easiest way is to use a Stream and its WriteComponent and ReadComponent methods.
But be aware that :
- it works for descendants of TComponent, not plain TObject;
- only for the published properties (those saved in a dfm), not the public ones nor (a fortiori) the privwte ones;
- you have to pay a special attention for the Name property when restoring the component.

您可能会在这些 SO 答案中找到一些可以使用的代码:在 Delphi 中运行时替换可视化组件，复制组件在运行时

You may find some code you could use in these SO answers: Replace visual component at runtime in Delphi, Duplicating components at Run-Time

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